package com.jeewms.www.tms.ui.acitivity;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.AssetFileDescriptor;
import android.graphics.Bitmap;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Vibrator;
import android.support.v4.content.FileProvider;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.widget.Toast;

import com.blankj.utilcode.util.ToastUtils;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;
import com.jeewms.www.tms.R;
import com.jeewms.www.tms.util.PermissionUtils;
import com.jeewms.www.tms.util.StringUtils;
import com.jeewms.www.tms.util.UiHelper;
import com.jeewms.www.tms.util.zxing.camera.CameraManager;
import com.jeewms.www.tms.util.zxing.decoding.CaptureActivityHandler;
import com.jeewms.www.tms.util.zxing.decoding.InactivityTimer;
import com.jeewms.www.tms.util.zxing.view.ViewfinderView;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Vector;

/**
 * Initial the camera
 * @author Ryan.Tang
 */
public class CaptureActivity extends Activity implements Callback {

	public static int SCANNIN_GREQUEST_CODE=99;
	private CaptureActivityHandler handler;
	private ViewfinderView viewfinderView;
	private boolean hasSurface;
	private Vector<BarcodeFormat> decodeFormats;
	private String characterSet;
	private InactivityTimer inactivityTimer;
	private MediaPlayer mediaPlayer;
	private boolean playBeep;
	private static final float BEEP_VOLUME = 0.10f;
	private boolean vibrate;

	public static void show(Activity context) {
		Intent intent = new Intent(context, CaptureActivity.class);
		intent.setClass(context,CaptureActivity.class);
		intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
		context.startActivityForResult(intent, SCANNIN_GREQUEST_CODE);
	}
	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		/*设置状态栏颜色*/
		setContentView(R.layout.camera);
		//ViewUtil.addTopView(getApplicationContext(), this, R.string.scan_card);
		CameraManager.init(getApplication());
		viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view);
		hasSurface = false;
		inactivityTimer = new InactivityTimer(this);
	}

	@Override
	protected void onResume() {
		super.onResume();
//		StatusBarUtil.getInstent().setStatusBar(this);
		SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view);
		SurfaceHolder surfaceHolder = surfaceView.getHolder();
		if (hasSurface) {
			initCamera(surfaceHolder);
		} else {
			surfaceHolder.addCallback(this);
			surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
		}
		decodeFormats = null;
		characterSet = null;

		playBeep = true;
		AudioManager audioService = (AudioManager) getSystemService(AUDIO_SERVICE);
		if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
			playBeep = false;
		}
		initBeepSound();
		vibrate = true;
//		((ImageButton)findViewById(R.id.btn_cancel_scan)).setOnClickListener(new OnClickListener() {
//			@Override
//			public void onClick(View v) {
//				finish();
//			}
//		});
	}

	@Override
	protected void onPause() {
		super.onPause();
		if (handler != null) {
			handler.quitSynchronously();
			handler = null;
		}
		CameraManager.get().closeDriver();
	}

	@Override
	protected void onDestroy() {
		inactivityTimer.shutdown();
		super.onDestroy();
	}
	
	/**
	 * Handler scan result
	 * @param result
	 * @param barcode
	 */
	public void handleDecode(Result result, Bitmap barcode) {
		inactivityTimer.onActivity();
		playBeepSoundAndVibrate();
		String resultString = result.getText();
		//FIXME
		if (resultString.equals("")) {
			Toast.makeText(CaptureActivity.this, "Scan failed!", Toast.LENGTH_SHORT).show();
		}else {
//			System.out.println("Result:"+resultString);
			Intent resultIntent = new Intent();
			Bundle bundle = new Bundle();
			bundle.putString("result", resultString);
			resultIntent.putExtras(bundle);
			this.setResult(RESULT_OK, resultIntent);
		}
		CaptureActivity.this.finish();
	}

	public static Uri getUri(Context context, File file) {

//		String state = Environment.getExternalStorageState();
//		if (state.equals(Environment.MEDIA_MOUNTED)) {
//			Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//			Uri uri = getUri(this, new File(path));
//			takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
//			takePictureIntent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
//			//Android7.0添加临时权限标记，此步千万别忘了
//			takePictureIntent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
//			this.startActivityForResult(takePictureIntent, requestCode);
//
//		}


		Uri fileUri;
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
			fileUri =  FileProvider.getUriForFile(context.getApplicationContext(),  "包名.fileprovider",file);
		} else {
			fileUri = Uri.fromFile(file);
		}

		return fileUri;
	}
	
	private void initCamera(SurfaceHolder surfaceHolder) {
		PermissionUtils.getCamerPermission(this);
		try {
			CameraManager.get().openDriver(surfaceHolder);
		} catch (IOException ioe) {
			return;
		} catch (RuntimeException e) {
			return;
		}
		if (handler == null) {
			handler = new CaptureActivityHandler(this, decodeFormats,
					characterSet);
		}
	}

	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width,
                               int height) {

	}

	@Override
	public void surfaceCreated(SurfaceHolder holder) {
		if (!hasSurface) {
			hasSurface = true;
			initCamera(holder);
		}

	}

	@Override
	public void surfaceDestroyed(SurfaceHolder holder) {
		hasSurface = false;

	}

	public ViewfinderView getViewfinderView() {
		return viewfinderView;
	}

	public Handler getHandler() {
		return handler;
	}

	public void drawViewfinder() {
		viewfinderView.drawViewfinder();

	}

	private void initBeepSound() {
		if (playBeep && mediaPlayer == null) {
			// The volume on STREAM_SYSTEM is not adjustable, and users found it
			// too loud,
			// so we now play on the music stream.
			setVolumeControlStream(AudioManager.STREAM_MUSIC);
			mediaPlayer = new MediaPlayer();
			mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
			mediaPlayer.setOnCompletionListener(beepListener);

			AssetFileDescriptor file = getResources().openRawResourceFd(
					R.raw.beep);
			try {
				mediaPlayer.setDataSource(file.getFileDescriptor(),
						file.getStartOffset(), file.getLength());
				file.close();
				mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
				mediaPlayer.prepare();
			} catch (IOException e) {
				mediaPlayer = null;
			}
		}
	}

	private static final long VIBRATE_DURATION = 200L;

	private void playBeepSoundAndVibrate() {
		if (playBeep && mediaPlayer != null) {
			mediaPlayer.start();
		}
		if (vibrate) {
			Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
			vibrator.vibrate(VIBRATE_DURATION);
		}
	}

	/**
	 * When the beep has finished playing, rewind to queue up another one.
	 */
	private final OnCompletionListener beepListener = new OnCompletionListener() {
		public void onCompletion(MediaPlayer mediaPlayer) {
			mediaPlayer.seekTo(0);
		}
	};

	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (requestCode == UiHelper.REQUEST_CODE_SELECTED_IMAGE && resultCode == Activity.RESULT_OK) {
			Object obj = data.getExtras().get(UiHelper.RESULT_SELECTED_IMAGES);
			if (obj != null) {
				try {
					@SuppressWarnings("unchecked")
                    ArrayList<File> files = (ArrayList<File>) obj;
					if (files != null && files.size() > 0){
						final Result result = StringUtils.parseQRcodeBitmap(files.get(0).getPath());
						if(null!=result){
							String resultString = result.getText();
							Intent resultIntent = new Intent();
							Bundle bundle = new Bundle();
							bundle.putString("result", resultString);
							resultIntent.putExtras(bundle);
							this.setResult(RESULT_OK, resultIntent);
							CaptureActivity.this.finish();
                        }else{
                          ToastUtils.showShort("无法识别");
					}
					}
				} catch (Exception e) {
				}
			}
		}
	};
}